摘要
基于交流电与直流电本身的差异,直流系统的保护与交流系统的保护要求也不尽相同。随着低压直流配电系统试验性应用的不断扩大,对于直流配电系统保护的研究也不断深入。依据IEC标准体系对直流配电系统的要求,简要分析用户侧低压直流配电系统的过流保护要素。
Due to the initial difference between alternating current(ac) and direct current(dc),the protection requirement for dc system is different from that of ac system.With more application exploring in LVDC,this paper discussed some key points of over-current protection for low voltage dc power(LVDC) distribution system based on IEC standards.
作者
胡宏宇
HU Hongyu(Siemens(China)Co.,Ltd.,Beijing 100102,China)
出处
《电器与能效管理技术》
2019年第3期64-67,共4页
Electrical & Energy Management Technology
关键词
低压直流
供电
接地形式
过流保护
low voltage DC power(LVDC)
power supply
types of system earthing
over-current protection
